CN102365529B - Method and system for detecting air pressure neutrality in air containment zones - Google Patents
Method and system for detecting air pressure neutrality in air containment zones Download PDFInfo
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- CN102365529B CN102365529B CN200980158554.1A CN200980158554A CN102365529B CN 102365529 B CN102365529 B CN 102365529B CN 200980158554 A CN200980158554 A CN 200980158554A CN 102365529 B CN102365529 B CN 102365529B
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- air
- tubular structure
- flow
- detachable cap
- detection system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0026—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using deflection of baffle-plates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
Abstract
An airflow detecting system includes a tubular structure (34) having an inner surface (36) defining an interior of the tubular structure, one open end (40) and an opposite open end (42). The tubular structure is configured to receive and expel air through both the one end and the opposite end. The system further includes a flap (48) connected to the inner surface of the tubular structure by a hinge (50). The flap is configured to impede airflow within the interior of the tubular structure upon the application of differential pressure across the two ends of the tubular structure. The system further includes a device (52) attached to the flap in a position in which the device spans the hinge. The device is configured to measure a parameter associated with the movement of the flap in response to airflow within the interior of the tubular structure. Other embodiments and methods are further disclosed.
Description
The background of present disclosure
1. the field of present disclosure
Present disclosure relates to frame and casing, and relates in particular to for measuring for the frame of the type of holding data processing, network and telecommunication apparatus and the equipment of the air-flow in casing.
2. the discussion of correlation technique
Be used for holding such as equipment shell or the frame of the electronic equipment of data processing, network and telecommunication apparatus were used a lot of years.This kind frame is usually used in holding and advancing equipment in large canyon and data center.In some embodiments, equipment stores frame and can be open construction and can be accommodated in the frame casing, and can comprise casing when mentioning frame.
Past, some different standards were developed so that device manufacturers can design the frame mountable device that can be installed in the standard rack of being made by different fabricators for many years.The frame of standard typically comprises front attachment rail, and a plurality of unit of electronic equipment such as server and CPU, are installed in front attachment rail and vertically are deposited in frame.About 6 to 6.5 feet high of exemplary industrial standard frame, approximately 24 inches wide and approximately 40 inches dark.This frame is commonly called " 19 inches " frame by the EIA-310-D standard definition of Electronic Industries Association.
Management system has been developed to manage distribution and the cooling system of the data center that comprises frame.A kind of this management system is known as by the American Electric Power of the western Kingston of the assignee of present disclosure, Rhode Island and changes the InfraStruXure that company (American Power Conversion Corporation of West Kingston, Rhode Island) provides
TM(" ISX ") manager, it is specifically designed to control the running at large-scale data center.
The heat that is produced by the equipment that is installed on frame can produce on performance, reliability and the serviceable life of element of installation negative impact.Especially, be contained in the equipment on frame of being installed in casing and easily be subject to the hot stack that produces in the casing scope and the impact of focus in operational process.The heat that the frame of equipment produces depends on the quantity of the electric power of the equipment acquisition in frame in service.In addition, the user of electronic equipment can be along with the development of the change of its demand and new demand and is increased, removes and rearrange the member that is installed on frame.
In the past, in some constructions, data center is undertaken coolingly by replenishing the data center cooling system with computer room air-conditioning (" CRAC ") unit, and this computer room air-conditioning unit be the fixed cell around the typically hard tube conveying of the periphery location of data center machine room.These CRAC unit absorbs air from the front portion of unit, and towards the ceiling of the data center machine room colder air of output upwards.In other embodiments, the CRAC unit absorbs air near the ceiling of data center machine room, and discharges colder air to be sent to the front portion of equipment rack below the bottom that promotes.Usually, this CRAC unit absorbs the air (72 °F of left and right) of room temperature and discharges cold air (55 °F of left and right), and cold air is blown into data center machine room and mixes with air at room temperature near equipment rack place or its.
In other embodiments, the CRAC unit can be modularization and be open-ended, so that this unit can be placed on according to the cooling requirement in data center any position in data center.This cooling unit be described in trying on January 19th, 2006 submit to, autograph for No. the 11/335th, 874, the U.S. Patent application of COOLING SYSTEM AND METHOD (cooling system and method) in.
Be installed on frame equipment typically by along the front side of frame or the air intake side draught draw air, attract air by its member and subsequently from the rear side of frame or outlet side discharge air and cooling oneself.In certain embodiment, air is attracted to pass equipment rack from " cold " passage, and " cold " passage typically is positioned at the front portion of equipment rack.The air of heating is discharged into " heat " or " warming up " passage from equipment rack, and " heat " or " warming up " passage typically is positioned at the rear portion of equipment rack.The demand of air-flow can change significantly because of the not isostructure that is installed on member on frame and frame and casing of varying number and type.
The disclosure general introduction
An aspect of present disclosure relates to the air-flow detection system, comprises tubular structure, and tubular structure has the inside surface of the inside that limits tubular structure, openend and relative openend.Tubular structure is constructed to receive and discharge air by a described end with relative bringing in.System also comprises the detachable cap (flap) that is connected with the inside surface of tubular structure by hinge.Detachable cap is constructed to should be used for hindering air-flow in tubular structure inside according to the differential pressure on tubular structure two ends.System also is included in the device that a position attaches to detachable cap, and described device is crossed over hinge in this position.This device is constructed to measure the parameter that is associated in response to the movement of the air-flow in the inside of tubular structure with detachable cap.
The embodiment of air-flow detection system comprises detachable cap is configured to integrally form with film, and film is fixed to the inside surface of tubular structure.In one embodiment, install be strainmeter, the strain that this strain-ga(u)ge measurement produces when detachable cap moves on hinge.System can also comprise and is arranged on the tubular structure inside surface to engage at least one block of detachable cap.
Another aspect of present disclosure relates to air keeping system (air containment system), comprises the plate and the air-flow detection system that is coupled to plate on the border that limits the air retaining zone.The air-flow detection system comprises tubular structure, and tubular structure has the inside surface of the inside that limits tubular structure, openend and relative openend.Tubular structure is constructed to receive and discharge air by an end with relative bringing in.The air-flow detection system also comprises the detachable cap that is connected with the tubular structure inside surface by hinge.Detachable cap is constructed to should be used for hindering air-flow in tubular structure inside according to the differential pressure on tubular structure two ends.The air-flow detection system also is included in the device that a position attaches to detachable cap, and described device is crossed over hinge in this position.This device is constructed to measure the parameter that is associated in response to the movement of the air-flow in the inside of tubular structure with detachable cap.
The embodiment of air keeping system comprises detachable cap is configured to integrally form with film, and film is fixed to the inside surface of tubular structure.In one embodiment, install be strainmeter, the strain that this strain-ga(u)ge measurement produces when detachable cap moves on hinge.The air-flow detection system also can comprise and is arranged on the tubular structure inside surface to engage at least one block of detachable cap.In other embodiments, the air keeping system can comprise the instrument that is used for controlling air-flow that air-flow entered and left the air retaining zone of controlling.The instrument that is used for the control air-flow comprises at least one cooling unit and the controller that is coupled to air-flow detection system and at least one cooling unit of the air that is constructed to the cooling-air retaining zone, and wherein at least one cooling unit comprises fan.Controller is constructed to operate in response to measured parameter the fan of at least one cooling unit.
Present disclosure relate on the other hand the air-flow detection system, comprise structure, this structure has the inside surface of the inside that limits this structure, openend and relative openend.This structure is constructed to receive and discharge air by this end with relative bringing in.The air-flow detection system also comprises the detachable cap that is connected with the tubular structure inside surface by hinge.Detachable cap is constructed to should be used for hindering air-flow in tubular structure inside according to the differential pressure on tubular structure two ends.The air-flow detection system also is included in the device that a position attaches to detachable cap, and described device is crossed over hinge in this position.This device is constructed to measure the parameter that is associated in response to the movement of the air-flow in the inside of this structure with detachable cap.
The embodiment of air-flow detection system comprises detachable cap is configured to integrally form with film, and film is fixed to the inside surface of tubular structure.In one embodiment, install be strainmeter, the strain that this strain-ga(u)ge measurement produces when detachable cap moves on hinge.In another embodiment, this structure is tubular structure.The air-flow detection system also can comprise and is arranged on the tubular structure inside surface to engage at least one block of detachable cap.
Another embodiment of present disclosure relates to the air-flow detection system, comprises structure, and this structure has the inside surface of the inside that limits this structure, openend and relative openend.This structure is constructed to receive and discharge air by this end with relative bringing in.The air-flow detection system also comprises the film that is connected with the inside surface of structure with the inside of choke structure, with the instrument that is associated with film, this instrument makes inside configuration produce air-flow according to the application of the differential pressure on tubular structure two ends and measures the parameter that is associated with the movement in response to the air-flow of inside configuration of detachable cap.
The embodiment of air-flow detection system comprises the detachable cap that is formed in film, and wherein detachable cap can integrally form with film.Detachable cap is connected with film by hinge, and detachable cap is constructed to the inside of barrier structure and makes inside configuration produce air-flow according to the introducing of the air-flow in an openend and one of relative openend.The instrument that is associated with film also is included in the device that a position attaches to detachable cap, and described device is crossed over hinge in this position.This device is constructed to measure the parameter that is associated in response to the movement of the air-flow in the inside of structure with detachable cap.In one embodiment, this device is strainmeter, the strain that this strain-ga(u)ge measurement produces on hinge when detachable cap moves.In another embodiment, this structure is tubular structure.The air-flow detection system also can comprise and is arranged on the tubular structure inside surface to engage at least one block of detachable cap.
The method that relates on the other hand the air-flow in the detecting air retaining zone of present disclosure.The method comprises: provide the air-flow detection system on the border of air retaining zone; And use the air-flow detection system to measure the parameter of the air-flow in the air retaining zone.
The embodiment of the method can also comprise the strain of measuring the detachable cap that is applied to the air-flow detection system.In addition, parameter can be the direction of air-flow.The air-flow detection system can comprise: structure, this structure have the inside surface of the inside that limits tubular structure, openend and relative openend, and tubular structure is constructed to receive and the discharge air by this end and relative bringing in; Film, it is connected to block the inside of tubular structure with the inside surface of tubular structure; Detachable cap, it is formed in film, and detachable cap is connected with film by hinge, and detachable cap is constructed to the air-flow that should be used for hindering tubular structure inside according to differential pressure on the two ends of tubular structure; And device, this device attaches to detachable cap in a position, and described device is crossed over hinge in this position, and this device is constructed to measure the parameter that is associated in response to the movement of the air-flow of tubular structure inside with detachable cap.Providing the air-flow detection system to comprise inserts the air-flow detection system in the plate of air retaining zone.The method also can comprise flowing according to the air of the parameter control outflow air retaining zone of measuring.
Present disclosure relate on the other hand the air-flow detection system, comprise tubular structure, tubular structure has inside surface, an openend and the relative openend of the inside that limits tubular structure, and tubular structure is constructed to receive and discharge air by this end with relative bringing in.The air-flow detection system also comprises the film of the inside that is connected to block tubular structure with the inside surface of tubular structure.The air-flow detection system also comprises the detachable cap that is formed in film, and detachable cap is connected with film by hinge.Detachable cap is constructed to should be used for hindering air-flow in tubular structure inside according to the differential pressure on tubular structure two ends.The air-flow detection system also is included in the device that a position attaches to detachable cap, and described device is crossed over hinge in this position.This device is constructed to measure the parameter that is associated in response to the movement of the air-flow of the inside of tubular structure with detachable cap.
Another embodiment of present disclosure relates to the air keeping system, comprise the border that limits the air retaining zone plate, with the air-flow detection system that hardens and close, and instrument, the air-flow detection system is constructed to measure direction and the size of air-flow that enters and flow out the border of air retaining zone, and described instrument is used for controlling according to the measurement result of the direction of the air-flow of being surveyed by the air-flow detection system and size the air-flow that enters and flow out the air retaining zone.
The embodiment of air keeping system comprises structure air-flow detection system, so that the air-flow detection system comprises: tubular structure, tubular structure has the inside surface of the inside that limits tubular structure, openend and relative openend, and tubular structure is constructed to receive and the discharge air by this end and relative bringing in; Detachable cap is connected with the inside surface of tubular structure by hinge, and detachable cap is constructed to the air-flow that should be used for hindering tubular structure inside according to differential pressure on the two ends of tubular structure; And device, this device attaches to detachable cap in a position, and described device is crossed over hinge in this position, and this device is constructed to measure the parameter that is associated in response to the movement of the air-flow of tubular structure inside with detachable cap.In one embodiment, detachable cap and film integrally form, and film is fixed on the inside surface of tubular structure.In another embodiment, install as measure the strainmeter of the strain that produces on hinge when detachable cap moves.The air-flow detection system also can comprise on the inside surface that is arranged in tubular structure to engage at least one block of detachable cap.The air keeping system also can comprise: be constructed at least one cooling unit of the air in the cooling-air retaining zone, at least one cooling unit comprises fan; And controller, controller and air-flow detection system and the coupling of at least one cooling unit.Controller is constructed to handle in response to the measurement result of the airflow direction of air-flow detection system detection and size the fan of at least one cooling unit.
Present disclosure will be by comprehend after consulting accompanying drawing, detailed instructions and claims.
Brief Description Of Drawings
In the accompanying drawings, each that shows in each figure identical or near identical member by the indication of same numeral.Being purpose clearly, may not be that each member is indicated in each accompanying drawing.In order to understand better present disclosure, with reference to accompanying drawing, wherein accompanying drawing mode is by reference incorporated this paper into, and wherein:
Fig. 1 is the schematic top view of data center's part, and data center has the air-flow detection system of present disclosure embodiment;
Fig. 2 is the schematic elevational view of the air-flow detection system of present disclosure embodiment;
Fig. 3 A is the schematic side elevation of air-flow detection system as shown in Figure 2, has the detachable cap in the system shown in detent position;
Fig. 3 A is the schematic side elevation of air-flow detection system as shown in Figure 2, has the detachable cap in the system shown in open position;
Fig. 4 is the skeleton view of a part of the air-flow detection system of another embodiment of present disclosure;
Fig. 5 is the sectional view of the air-flow detection system of another embodiment of present disclosure;
Fig. 6 is mounted in the skeleton view of the air-flow detection system of another embodiment of present disclosure on bar, and bar can be fixed to equipment rack;
Fig. 7 has shown general-purpose computing system, and each embodiment of present disclosure can be carried out thereon;
Fig. 8 has showed the memory device of general-purpose computing system; And
Fig. 9 has described the network of general-purpose computing system.
The detailed description of preferred implementation
Just to the purpose of explanation, and be not limited to general introduction, present disclosure is described in detail with reference to accompanying drawing.The structure of the member that present disclosure demonstrates be not limited to that following instructions is illustrated or accompanying drawing on it is used in and the details of layout.Present disclosure can have other embodiment and can carry out in a different manner or realize.In addition, use therein wording and term are for illustrative purposes, and should not be regarded as restriction.The meaning of use therein " comprising ", " comprising ", " having ", " containing ", " relating to " and its distortion is to contain entry and its equivalent of listing thereafter, also contains additional entry.
Typical data center can be designed to hold many equipment racks.In one embodiment, each equipment rack can be according to United States Patent (USP) the 7th, 293, No. 666, autograph are disclosed instruction structure in EQUIPMENT ENCLOSURE KIT AND ASSEMBLY METHOD, this patent is owned by the assignee of present disclosure, and mode is by reference incorporated this paper into.Other examples of equipment rack are changed company with trade (brand) name NetShelter by American Electric Power
TMSell.In addition, the wiring between equipment rack can be used as United States Patent (USP) the 6th, 967, and the disclosed cable distribution groove that is included on frame top is implemented in No. 283, and this patent also by reference mode is incorporated this paper into and has been transferred to the assignee of present disclosure.The principle of present disclosure can be suitable for less data center, canyon, computer room and distributing cabinet even.Data center described herein only provides by example.
Each equipment rack can be constructed to comprise framework or the shell that is suitable for supporting such as the electronic component of data processing, network and telecommunication apparatus.Shell comprises front portion, rear portion, relative side, bottom surface and end face.The front portion of each equipment rack can comprise that the Qianmen is with inside that can the access arrangement frame.Can provide lock with the inside of entry deterrence equipment rack and the equipment that is held by frame.The side of equipment rack can comprise that at least one plate is with the interior zone of sealing frame.The rear portion of equipment rack can comprise that also at least one plate or back door are to provide from the entrance of the access arrangement frame inside, rear portion of frame.In some embodiments, side plate and rear plate, and Qianmen and back door can be by for example perforated metal manufacturings, to allow air to flow into or to flow out the interior zone of equipment rack.In other embodiments, the Qianmen can comprise movably plate.
Equipment rack is modular and is constructed to roll into and rolls out its position textural, such as on a row of data center.Castor can be fixed to the bottom of each equipment rack so that frame can be along the bottom surface rolling of data center.In case in place, levelling foot can be arranged firmly equipment rack is shelved on the position on row.
In case in place, electronic equipment can be placed on the interior zone of equipment rack.For example, equipment can be placed on be fixed on equipment rack interior zone in shelf on.The top that provides the cable of electronics and data communication can be arranged to pass equipment rack is perhaps passed and is had the lid (or " top ") that is formed at opening wherein, an open top of perhaps passing equipment rack on the equipment rack top.In this embodiment, cable can string along the top of frame or be arranged in aforementioned cable distribution groove.In another embodiment, cable can be disposed in the bottom surface of projection, and is connected to electronic equipment by the bottom of equipment rack.In two kinds of structures, power line and order wire are provided to equipment rack also therefrom out.
As above-mentioned discussion, data center typically is configured to have many row's equipment racks, and equipment rack is arranged to so that cold air sucks frame and warm air or hot-air from cold passage and enters the passage of heat from frame.In one embodiment, equipment rack can be arranged to two rows, and wherein the front portion of nearly row's equipment rack is arranged on direction forward, and the rear portion of row's far away equipment rack is arranged on direction backward.Yet, as mentioned above, in typical data center, many row's equipment racks can be arranged, the rear portion that the front portion that wherein said row can be set to equipment rack faces with each other to limit cold passage and equipment rack faces with each other to limit the passage of heat.In other structures, the cold or passage of heat can be disposed between wall and row's equipment rack.For example, one row equipment rack can separate with wall, wherein the rear of equipment rack to wall to limit the passage of heat between the row of wall and equipment rack.
In order to solve hot stack and the heat spot in data center or canyon, and in order to solve usually in data center or indoor environment control problem, can provide cooling system.In a kind of structure, cooling system can be set to the part of data center's foundation structure.In the another kind structure, the cooling system of data center can increase conventional CRAC as above unit.In another structure, can provide modular cooling system.
It is the U.S. Patent application of trying the 11/335th of COOLING SYSTEM AND METHOD (cooling system and method) that this modular system is described in the autograph of submitting on January 19th, 2006, in No. 874, this patent is that the assignee of present disclosure owns, and mode is by reference incorporated this paper into.Cooling system can comprise a plurality of cooling frame that is arranged in data center.In one embodiment, layout every two equipment racks that can be to provide in data center have a cooling frame.Yet, should be appreciated that those skilled in the art, and consider the benefit of present disclosure, can be according to the environmental aspect of data center and more or less cooling frame is provided in data center.In addition in some embodiments, cooling frame concentrate and the location can be according to the position of frame the hottest in data center, perhaps obtains according to data center's information management system and the information of analyzing and the type of device that is contained in data center are adjusted.
The details of modular cooling system and its various members and structure can find in No. the 11/335th, 874, just on the docket U.S. Patent application.In addition, cooling system can comprise other cooling structures that the American Electric Power conversion company such as the western Kingston of those assignees by present disclosure, Rhode Island provides.
In one embodiment, can provide management system to monitor and to show the state of cooling frame or a plurality of cooling frames.Management system can operate to control the running of cooling frame independently, and can be configured to the network manager of higher level or store with device the communication that frame is associated.For example, in a specific embodiment, can provide controller to control the running of cooling frame.Controller can be the special cell of data center cooling system.In another embodiment, can provide controller as integrated data center's control and the part of monitoring system.In another embodiment, but each cooling frame can be by the controller independent operation that is provided in cooling frame, and this controller is communicated by letter with the controller in other cooling frames.Although be particular configuration, this controller is designed to control the independent operating of the cooling frame in data center.
For example, controller can be constructed to identify and is positioned at data center with the inefficacy of the concrete cooling frame of cooling-air or loses ability, and strengthens near the cooling performance of the cooling frame the cooling frame that is positioned at inefficacy.In another embodiment, a cooling frame can be used as formant or master unit operation, and another cooling frame is moved as the auxiliary unit of moving under controlling at formant.In this embodiment, lead cooling frame and can handle to control whole cooling system by the operator of data center.For example, controller can be constructed to receive the quantity of power of information to determine to be extracted by each equipment rack from equipment rack.Has these knowledge, the energy that controller can extract based on equipment rack and be configured to strengthen the cooling performance of some the cooling frames in cooling system.
The same with equipment rack, cooling frame textural can modularization and be constructed to roll into and roll out its position, such as data center on the row of one between two equipment racks.Castor can be fixed on the bottom of the shell of cooling frame, so that cooling frame can be rolled along the bottom surface of data center.In case in place, levelling foot can be arranged firmly cooling frame is shelved on the position on row.In another embodiment, the shell of cooling frame can be formed with lifting bolt so that other lifting gear of crane or some can promote and place cooling frame in data center.
In one embodiment, be arranged so that cold passage is adjoined in the front portion of equipment and cooling frame, and the passage of heat is adjoined at the rear portion of frame.The modularization of cooling frame and movably character make on its cool position in the data center that needs environment to control especially effective, such as the position of adjoining the passage of heat.Along with the operator of data center is increasing and removing cooling frame on the basis as required, this structure makes cooling frame can be used as the structure member that data center is cooling and environment is controlled.Thereby cooling frame provides than the previous higher levels of scalability in CRAC unit.In addition, exercisable cooling frame can promptly and easily be provided to replace the cooling frame of inefficacy.
Controller can be suitable for coming based on the environmental parameter that is obtained by controller the running of Controlled cooling system.In one embodiment, controller can only comprise the controller unit that is provided in cooling frame, and this controller unit is communicated by letter each other by the bus of controller zone network (CAN).In other embodiments, can provide master controller to control the running of controller unit.Each cooling frame can provide the display module that operationally is bonded to controller.Display module is suitable for showing the ambient condition of data room, be such as but not limited to cooling frame place data center temperature and humidity, enter and withdraw from the air of cooling frame temperature, enter and withdraw from the cooling medium of cooling frame temperature, enter the flow velocity of the cooling medium of cooling frame and the cooling performance of cooling frame.Describe in more detail as following, display module can be constructed to show direction and the size of the interior air-flow of particular thermal passage in data center.Can provide suitable monitor and/or meter to obtain this type of information.Selectively, perhaps except aforementioned embodiments, ambient condition can be displayed on the unit that is provided with integrated data center control and monitoring system.
In some cases, in the passage of heat and cold passage, and especially in the passage of heat, controlling the mobile of air needs.Typically, the heat that is produced by the electronic component that is contained in equipment rack is discharged from the rear portion of equipment rack and is entered the passage of heat.In addition, comprising for the hot-air of regulating by cooling unit can be also needs, and cooling unit is such as modular cooling unit as above.It is known sealing the passage of heat by the top plate member that designs for special equipment rack structure.The known top plate member of this kind is typically installed during the erecting equipment frame in data center, and is made by the fabricator of equipment rack.
A kind of embodiment of the air keeping system of present disclosure can comprise a plurality of board components, and board component is configured to arrange with the relation of left and right, to form top board.In one embodiment, each board component can be configured to comprise the plate of flexible light weight amount, and this plate has first end, second-phase opposite end, the first side and second-phase offside.Board component also can further be configured with first end web member, the second end connection, the first side web member and the second side web member, the first end web member is constructed to the first end of flexible board is fixed to one of them of frame and wall, the second end connection is constructed to the second end of flexible board is fixed to one of them of frame and wall, the first side web member is constructed to the first side of flexible board is fixed to the second side of the flexible board of adjacent panel assembly, and the second side web member is constructed to the second side of flexible board is fixed to the first side of the flexible board of adjacent panel assembly.This structure makes a plurality of board components can be rapidly and be arranged on easily between row newly-built or existing equipment rack, and does not consider the length of arranging or the width of passage.Other air keeping system also can be provided.For example, passage of heat air keeping system can be at United States Patent (USP) the 6th, 859, No. 366 and the 7th, 046, finds in No. 514.Other examples of passage of heat keeping system can be provided with model ACDC1014, ACDC1015, ACDC1018 and ACDC1019 by the American Electric Power conversion company of the western Kingston of the assignee of present disclosure, Rhode Island.
Referring now to accompanying drawing, and especially with reference to Fig. 1, the part of exemplary data center is usually by 10 indications.As shown in the figure, data center comprises a plurality of equipment racks, and each is with 12 indications.Equipment rack 12 comprises information technoloy equipment, and information technoloy equipment can comprise data processing, network and telecommunication apparatus.Equipment rack 12 can be configured in a row to limit the passage of heat 14, and the passage of heat 14 can be considered to the air retaining zone with other zone isolation of data center.This layout makes the front portion of cold air access arrangement frame 12 and warm air discharge from the rear portion of equipment rack.
The front portion of each equipment rack 12 can comprise that one or more door is with inside that can the access arrangement frame.Although do not illustrate, the front portion of equipment rack 12 can comprise two doors.The side of each equipment rack 12 can comprise that one or more plates (not drawing) are with the interior zone of provision for sealing frame.The rear portion of each equipment rack 12 can comprise that also at least one plate (not shown) and/or back door (not shown) are to provide from the entrance of the passage of heat 14 access arrangement frame inside.Side plate and rear plate, and Qianmen and back door can be by for example perforated metal manufacturings, to allow air to flow into and to flow out the interior zone of equipment rack.
Each one or more cooling unit with 16 indications can be arranged between equipment rack 14 and be included in the interior hot stack of the passage of heat 14 with solution.Cooling unit 16 can be constructed to pass from the passage of heat 14 the rear portion absorption warm air of cooling unit, and cooling warm air is also discharged cold air to data center from the front portion of cooling unit.In order to realize the remainder of air-flow from the passage of heat to data center, each cooling unit 16 can comprise one or more fans 18, and fan 18 drives the movement of air in cooling unit separately.
Equipment rack 12 and cooling unit 16 can be modular and be constructed to roll into and roll out its position textural, such as a row according in the heart.The castor (not shown) can be fixed to the bottom of each equipment rack 12 and cooling unit 16 rolling along the bottom surface of data center.In case in place, the levelling foot (not shown) can be arranged with firmly with the appropriate location in equipment rack 12 and cooling unit 16 rows of being shelved on.
The passage of heat 14 can be limited by top board or top (not shown) and one or more wall or plate, each wall or plate in Fig. 1 with 20 indications.Provide controller 22 with opertaing device frame 12 or cooling unit 16 or both operations.As above-mentioned discussion, controller 22 can be data center 10 cooling system special cell or integrated data center controls and the part of monitoring system.In another embodiment, each cooling unit 16 can be exercisable independently by the nonshared control unit that is arranged in cooling unit, and nonshared control unit is connected with the controller of other cooling units or is connected with the network that is connected with master controller.Although this special tectonic, controller 22 are designed at the freeze independent operation of unit 16 of data center's 10 internal controls.Therefore, the controller that schematically demonstrates in Fig. 1 can be controlled all members for air-flow in measurement and maneuveringair retaining zone.
Controller 22 be constructed to identify be positioned at data center 10 with cooling-air and strengthen cooling unit cooling performance indivedual cooling units 16 inefficacy or lose ability.Thereby controller can be controlled the interior air stream of the passage of heat 14 by the fan 18 of handling cooling unit.Controller 22 can be suitable for communicating with one another by controller zone network (CAN) bus.Each cooling unit 16 can be provided with the display module (not shown) to show the ambient condition of data room, be such as but not limited to, the temperature and humidity of cooling unit place data center, enter and withdraw from the air of cooling unit temperature, enter and withdraw from the cooling medium of cooling unit temperature, enter and/or withdraw from the flow velocity of the cooling medium of cooling unit and the cooling power of cooling unit.The operation of controller 22 is with reference to the following further discussion in Fig. 7-9.
With reference to Fig. 2, the embodiment of air-flow detection system is usually with 32 indications in addition.As shown in the figure, air-flow detection system 32 is arranged in the wall 20 of the passage of heat 14, and wall 20 defines the border between the passage of heat and chamber generally.In another embodiment, air-flow detection system 32 can be arranged in the rear portion of one or more equipment racks 12 and/or in the rear portion of one or more cooling unit 16, perhaps in the interior any suitable position of data center 10, between the remainder of the passage of heat 14 and data center, the border is arranged in this suitable position.
Air-flow detection system 32 comprises the tubular body 34 with inside surface 36 and outside surface 38, and inside surface 36 defines the inside of tubular body.Tubular body 34 also comprises relative openend 40,42, and openend 40,42 is constructed to pass through its reception and discharge air according to the direction of equipment rack 10 interior air-flows.Can provide flange 44 so that tubular body 34 is fixed to wall 20.As shown in the figure, flange 44 is constructed to engage the outside surface 38 of tubular body 34 and is fixed to wall 20 by the suitable fasteners (not shown) such as the machine screw securing member.Flange 44 can be fixed to the outside surface 38 of tubular body 34 suitably.In one embodiment, flange 44 can be force-fitted on the outside surface 38 of tubular body 34.In another embodiment, flange 44 can be fixed to by suitable bonding agent tubular body 34.
Fig. 3 A and 3B have showed the diagram of embodiment of the working component of air-flow detection system 32.As shown in the figure, film 46 is arranged in tubular body 34.Especially, film 46 inside surface 36 that is connected to tubular body 34 is to block or otherwise to hinder air-flow in the interior zone that is limited by tubular body.In one embodiment, film 46 can be integrally formed with tubular body 34.In another embodiment, film 46 can be to be fixed to independent member on the inside surface 36 of tubular body 34 by any suitable method.The air-flow detection system also comprises the detachable cap 48 that is formed in film 46.As shown in the figure, detachable cap 48 is connected with film 46 by hinge 50, and hinge 50 makes detachable cap removable with respect to film.
In one embodiment, it is whole that detachable cap 48 and film 46 consist of each other, so hinge 50 is " hinges ", and wherein film and detachable cap (and tubular body) can be by such as tygon or polyacrylic suitable plastic material manufacturings.As shown in Figure 3A, this is arranged as so that detachable cap 48 can block the interior zone of tubular body 34.When the air shift-in or when shifting out equipment rack, detachable cap 48 is constructed to make air-flow pass an openend (such as openend 40) and flow out from another openend (such as openend 42) in tubular body 34 inside.Thereby, air-flow detection system 32 can make air-flow from the inside of equipment rack the outside to equipment rack, and can be from the inside of the outside access arrangement frame of equipment rack.
Be to measure the gentle strength of flow of direction of air-flow, device 52 can attach to detachable cap 48 in a certain position, at this device of this position across hinge 50.In this position, device 52 is constructed to measure the moving direction of detachable cap 48 and the amount that detachable cap moves.In specific embodiment, device 52 can be the strainmeter of measuring the strain that produces on hinge 50 when detachable cap 48 moves.Strainmeter can be the Tokyo Sokki Kenjuyo Co by the Tokyo, and Ltd. makes, manufacturer's Part No. is the type of GFLA-3-350-50-1L.Thereby device 52 can be constructed to survey airless, survey inside air-flow at the outside air-flow of stretch-draw position sensing with at compression position at neutral position.Should be appreciated that device 52 can be constructed to survey outside air-flow and at the inside air-flow of stretch-draw position sensing at compression position.
Strain character and large I are read with the direction of determining air-flow and the speed of air-flow.Strainmeter be created in to be applied to it on the proportional resistance variations of strain.The resistance of the variation that applies in a side of bridge circuit causes and the proportional change in voltage of the resistance variations of strainmeter.This voltage signal can be used as the input of the operational amplifier of simulation, and the operational amplifier of simulation provides certain gain so that the signal amplitude that is suitable for by analog-digital converter (" A/D converter ") measurement to be provided.A/D converter and controller UNICOM, controller is used necessary operation so that the numerical value of appropriate units (such as the cubic feet per minute) to be provided.Then in the time need to keeping appropriate ratio than cold airflow to the IT air-flow, this value is for combining to control the fan 18 of cooling unit 16 with known other values of controller 22.
With reference to Fig. 4, shown another embodiment of air-flow detection system, have circular membrane 46 and the detachable cap 48 that is connected small hinge 50 and is connected with film.As shown in the figure, strainmeter 52 is provided on hinge 50 to measure movement by detachable cap 48 and is applied to tension force and force of compression on hinge.Fig. 5 has showed another embodiment of air-flow detection system 32, and wherein detachable cap 48 is connected with the inside surface 36 of tubular structure 34 by hinge 50.As shown in the figure, also can provide little or negligible film 46.Should be appreciated that not to need to provide film.A pair of block, each is with 54 indications, can be provided on the inside surface 36 of tubular body 34 to engage detachable cap 48, is used for the excessive movement of prevention detachable cap when air is flowed through tubular body with excessive speed.As shown in the figure, air moves with the direction shown in arrow A.Fig. 6 has showed the air-flow detection system 60 of another embodiment that is arranged on bar 62, and bar 62 can be suitable for being fixed to equipment rack.
The embodiment of present disclosure also can comprise the method for air-flow in the detecting air retaining zone.In a particular embodiment, the border that the method can be included in the air retaining zone provides the air-flow detection system, and measures the parameter of air-flow in the air retaining zone by the air-flow detection system.The air-flow detection system can be arranged in the plate of air retaining zone or in any other suitable position, and such as in equipment rack or cooling unit, the air-flow detection system that provides arranges along the border of air retaining zone.The parameter of measuring can be the strain that is applied on the detachable cap of air-flow detection system.In addition, perhaps selectively, the parameter of measurement can be the direction of air-flow.In one embodiment, the air-flow detection system can be any system as above.The method also can comprise according to the parameter of measuring controls flowing of the air that flows out the air retaining zone.This can realize by the fan that operates cooling unit in response to the information that is obtained by the air-flow detection system, this fan and air retaining zone fluid communication.
Again with reference to Fig. 1, a plurality of equipment racks and a plurality of cooling unit can this kind mode be placed, to form substantially the air retaining zone between the equipment of two parallel.This air retaining zone can further strengthen by comprising top board, and top board is crossed over the passage of heat.Top board can make up to support by the row of the equipment rack that is positioned at the passage side and cooling unit and by certain of a pair of equipment rack that is positioned at channel end or a pair of cooling unit or equipment rack and cooling unit.In addition, the integrality of air retaining zone can further strengthen by comprising the one or more door/plate systems that are placed on every end.Such as being used in the air retaining zone, i.e. the passage of heat, and the system of the physical boundary of entity is provided between larger exterior circumferential space.
As shown in Fig. 1 arrow, each equipment rack absorbs relatively cold air from larger surrounding space, and warm air is arranged into the air retaining zone.The gas velocity of any given equipment rack depends on IT operating load and environment temperature largely, and temporal evolution substantially typically.The pure qi (oxygen) stream (combined net airflow) of combination that enters all information technoloy equipments of hot-air retaining zone becomes and can change and be difficult to heavens to expect.The clean IT air-flow that cooling unit will make up is arranged into the air retaining zone, added and enter some a small amount of additional amount, be the cold air that enters hot retaining zone to guarantee any air leakage, rather than uncooled hot-air outwards flows out.Typically, the air-flow that is provided by cooling unit will be 110% the order of magnitude of the IT air-flow of clean heating.Thereby the air retaining zone is slight negative pressure state than surrounding space on every side.Basically the cooling unit gas velocity higher than this value is no advantage to refrigerating function and causes excessive fan power consumption.Thereby operating cooling unit with the speed slightly higher than the hot-air speed that enters the air retaining zone from equipment rack is very economical to move with cooling-air from the air retaining zone.
The leakage of calibration can produce to permeate in this way passes one of them physical boundary.For example, a kind of device such as one in the said flow detection system, can be provided in the plate that forms physical barriers.This device can comprise the stream pipe and have the detachable cap assembly of " hinges ".Hinge can comprise in this way directed to survey the strainmeter that is applied to the strain on hinge by different detachable caps positions.Especially, strain can show tension force and force of compression reading.Be in compression and which side is in stretch-draw according to any side, can estimate the direction of Air Flow (flow into or flow out retaining zone).By the size of measuring the strain on hinge and the characteristic of leaking in conjunction with calibration, also can assess the size of air-flow.These data can be reached the controller that is connected with cooling unit with equipment rack or cooling unit or equipment rack.Controller can be constructed to control one of them cooling unit fan running or control the running of the fan of a plurality of cooling units.The speed that controller can be adjusted fan according to control algolithm is to maintain desired orientation and the size of the leakage between retaining zone and exterior circumferential space.
Thereby, should be noted that air-flow detection system disclosed herein can construct to survey direction and the size by the air-flow of equipment rack in any suitable manner.The air-flow of cooling device closely need to be mated the air-flow that is contained in the information technoloy equipment in equipment rack.It is difficult that the air-flow of cooling device is matched with the demand of information technoloy equipment, because information technoloy equipment may or not extremely difficult acquisition with the measurement result of static pressure in constant or known temperature operation and retaining zone.The equipment of air-flow detection system disclosed herein provides good solution to be flow to and to flow out airflow direction and the size of the retaining zone that is limited by equipment rack.
As above-mentioned discussion, shown by embodiment shown in Figure 5, providing of film is unwanted.In addition, although this paper has mainly described by the air-flow after forward direction, the air-flow detection system of present disclosure embodiment can be used for surveying with the measuring equipment frame in the left and right air-flow.In this kind embodiment, the air-flow sniffer will be arranged on a wherein side of equipment rack.In addition, can provide air detection system more than one in the air retaining zone.
According to the embodiment of present disclosure, the system and method for above-mentioned restriction can be realized on one or more general-purpose computing systems.For example, the different aspect of present disclosure can be implemented as the specific software of carrying out on general-purpose computing system 400 as shown in Figure 7.Computer system 400 can comprise one or more output devices 401, one or more input equipments 402, the processor 403 that is connected with one or more memory devices 404 by interconnection mechanism 405 is with the one or more memory devices 406 that are connected with interconnection mechanism 405.Output device 401 typically makes information be used for outside the demonstration, and example comprises monitor and printer.Input equipment 402 typically receives information from external source, and example comprises keyboard and mouse.Processor 403 is typically carried out a series of instructions that cause that data are processed.Processor 403 is commercial processor typically, such as Intel Pentium, Motorola PowerPC, SGI MIPS, Sun UltraSPARC or Hewlett-Packard PA-RISC processor, but can be the processor of any type.Memory device 404 such as disc driver, storer or be used for other devices of storage data, typically is used in computer system 400 run duration stored routine and data.Equipment in computer system 400 can be by at least one interconnection mechanism 405 coupling, and interconnection mechanism 405 can comprise for example one or more communication devices at system's 400 interior communication datas (such as bus).
Show in greater detail as Fig. 8, memory device 406 typically comprises computer-readable and the permanent recording medium 911 that can write, storage signal in permanent recording medium 911, this signal limiting the program that will be carried out by processor or will be by routine processes be stored on medium 911 or interior information.Medium can be for example disk or flash memory.Typically, in operation, processor causes data to be read from permanent recording medium 911 to another storer 912, and this storer 912 allows processor access information quickly with respect to medium 911.Storer 912 is variable, random access memory typically, such as dynamic RAM (DRAM) or dead memory (SRAM).Storer 912 can be positioned at memory device 406, as shown in the figure, perhaps is positioned at memory device 404.Processor 403 operates in storer 404, the data in 912 usually, then after finishing dealing with data copy to medium 911.The many mechanisms that are used for data mobile between management medium 911 and storer 404,912 are known, and present disclosure is not limited to this.Present disclosure is not limited to specific memory device 404 or memory device 406.
Although computer system 400 is shown as the computer system of a type by way of example, the various aspects of present disclosure can be implemented in this system, should understand that present disclosure is not limited to carry out on computer system shown in Figure 7.As above-mentioned discussion, the various aspects of present disclosure can be rendered on one or more computing machines, and described computing machine has and different structure shown in Figure 7 or member.In order to demonstrate, an embodiment of present disclosure can satisfy with a plurality of general-purpose computing systems with Motorola PowerPC processor of moving the MAC OS X of system and a plurality of specialized computer system of moving special hardware and operating system the supply requirement of the network equipment.
As shown in Figure 9, one or more parts of system can be assigned to computing machines (such as the 109-111 of system) one or more and communication network 108 couplings.The physical medium of communication network 108 interior uses can comprise any type known in the art, such as, for example, physical routing and/or wireless technology (such as radio frequency, infrared ray etc.).And each physical medium can meet different standards, such as, for example, CAT 5 line standards or IEEE 802.11, bluetooth and Zigbee wireless standard.Computer system 109-111 can also be general-purpose computing system.For example, the various aspects of present disclosure can be distributed between one or more computer systems, this computer system is configured to one or more client computers service (such as server) is provided, and perhaps carries out total task as the part of distribution system.More specifically, the various aspects of present disclosure can be carried out on client server system, and client server system comprises being distributed in carries out the member of difference in functionalitys according to the different embodiments of present disclosure in the middle of one or more server systems.These members can be (such as Java) codes of executable, middle (such as IL) or explanation, and code uses communication protocol (such as TCP/IP) in the upper communication of communication network (such as the Internet).In order to demonstrate, an embodiment can come by the html format of browser-interpreted the information of display network supply of equipment need state, and can fetch with the data translation service that moves on independent server the source supplier's of data center information.
The different embodiments of present disclosure can use OO programming language programming, such as SmallTalk, Java, C++, Ada or C# (C-Sharp).Can also use other OO programming language.Selectively, can use the programming language of function, script and/or logic.The various aspects of present disclosure can be (such as the document that creates with HTML, XML or extended formatting under the environment of non-programming, when watching in the window at browser program, the function that it provides the outward appearance of graphical user interface (GUI) or carries out other) carry out.The various aspects of present disclosure can be implemented as element programming or non-programming, or its combination in any.For example, the user interface of provisioning policy can use Microsoft's Word document to realize, can write by C++ and be designed for the application of managing supply requirement.
Should understand, according to the general-purpose computing system of present disclosure can be outside the scope of present disclosure practical function.For example, the each side of system can be carried out with existing commercial product such as for example data base management system (DBMS), this data base management system (DBMS) for example, can be from the available sql server of Microsoft of Seattle WA., from Oracle of Redwood Shores, the oracle database of CA, with the MySQL from Sweden MySQL AB of UPPSALA, and from the WebSphere middleware software of New York IBM of Armonk.If sql server is installed on general-purpose computing system to realize the embodiment of present disclosure, same general-purpose computing system can be supported the database of various application.
Based on aforementioned disclosure, those skilled in the art should understand that present disclosure is not limited to specific computer system platform, processor, operating system, network or communication protocol.In addition, need to understand that present disclosure is not limited to specific structure or programming language.
So far described at least one embodiment of present disclosure, those skilled in the art can make various distortion, modification and improvement easily.This distortion, modification and improvement are comprised in the scope and spirit of present disclosure.Therefore, above stated specification is only by way of example, and is not considered to restriction.The restriction of present disclosure only limits by appended claim and its equivalent.
Claims (11)
1. the method for the air-flow in a detecting air retaining zone, described method comprises:
Provide the air-flow detection system on the border of described air retaining zone; And
Use described air-flow detection system to measure the parameter of the air-flow in described air retaining zone,
Wherein said air-flow detection system comprises:
Tubular structure, it has the inside surface of the inside that limits tubular structure, openend and relative openend, and described tubular structure is constructed to bring in by a described openend and described relative opening and receives and discharge air,
Film, its described inside surface that is connected to described tubular structure to be blocking the described inside of described tubular structure,
Detachable cap, it is formed in described film, described detachable cap is hinged to described film, described detachable cap be constructed to according to differential pressure on the two ends of described tubular structure should be used for hindering air-flow in the described inside of described tubular structure, and
Attach to the device of described detachable cap in a position, cross over described hinge at device described in described position, described device is configured to measure the parameter that is associated in response to the movement of the air-flow in the described inside of described tubular structure with described detachable cap.
2. method according to claim 1, wherein said parameter is the strain that is applied to the detachable cap of described air-flow detection system.
3. method according to claim 1, wherein said parameter is the direction of air-flow.
4. method according to claim 1, wherein provide the air-flow detection system to comprise described air-flow detection system inserted in the plate of described air retaining zone.
5. method according to claim 1 also comprises according to the parameter of measuring and controls flowing of the air that flows out described air retaining zone.
6. air-flow detection system comprises:
Tubular structure, it has the inside surface of the inside that limits described tubular structure, openend and relative openend, and described tubular structure is constructed to bring in by a described openend and described relative opening and receives and discharge air;
Film, it is connected to the described inside surface of described tubular structure, to block the described inside of described tubular structure;
Detachable cap, it is formed in described film, and described detachable cap is hinged to described film, and described detachable cap is constructed to should be used for hindering air-flow in the described inside of described tubular structure according to differential pressure on the two ends of described tubular structure; And
Attach to the device of described detachable cap in a position, cross over described hinge at device described in described position, described device is constructed to measure the parameter that is associated in response to the movement of the air-flow in the described inside of described tubular structure with described detachable cap.
7. air keeping system comprises:
Plate, it limits the border of air retaining zone;
The air-flow detection system, it is coupled to described plate, and described air-flow detection system is constructed to measure direction and the size of the air-flow on the border that enters and leave described air retaining zone, and wherein said air-flow detection system comprises:
Tubular structure, it has the inside surface of the inside that limits described tubular structure, openend and relative openend, and described tubular structure is constructed to bring in by a described openend and described relative opening and receives and discharge air,
Detachable cap, it is hinged to the described inside surface of described tubular structure, described detachable cap be constructed to according to differential pressure on the two ends of described tubular structure should be used for hindering air-flow in the described inside of described tubular structure, and
Attach to the device of described detachable cap in a position, cross over described hinge at device described in described position, described device is configured to measure the parameter that is associated in response to the movement of the air-flow in the described inside of described tubular structure with described detachable cap; And
Be used for controlling the instrument of air-flow, it is used for controlling according to the measurement result of the direction of the air-flow of being surveyed by described air-flow detection system and size the air-flow that enters and leave described air retaining zone.
8. air keeping system according to claim 7, wherein said detachable cap and film integrally form, and described film is fixed to the described inside surface of described tubular structure.
9. air keeping system according to claim 7, wherein said device is strainmeter, the strain that described strain-ga(u)ge measurement produces on described hinge when described detachable cap moves.
10. air keeping system according to claim 9, wherein said air-flow detection system also comprises on the described inside surface that is arranged in described tubular structure to engage at least one block of described detachable cap.
11. air keeping system according to claim 7, the described instrument that wherein is used for the control air-flow comprises:
At least one cooling unit, it is constructed to the air in cooling described air retaining zone, and described at least one cooling unit comprises fan, and
Controller, it is coupled to described air-flow detection system and described at least one cooling unit, and described controller is constructed to handle in response to the measurement result of the direction of the air-flow of being surveyed by described air-flow detection system and size the described fan of described at least one cooling unit.
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| US12/361,055 US7861596B2 (en) | 2009-01-28 | 2009-01-28 | Method and system for detecting air pressure neutrality in air containment zones |
| PCT/US2009/068913 WO2010087917A1 (en) | 2009-01-28 | 2009-12-21 | Method and system for detecting air pressure neutrality in air containment zones |
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| CN100555239C (en) | 2006-12-22 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Apparatus for measuring air quantity of computer fan |
-
2009
- 2009-01-28 US US12/361,055 patent/US7861596B2/en not_active Expired - Fee Related
- 2009-12-21 CN CN200980158554.1A patent/CN102365529B/en not_active Expired - Fee Related
- 2009-12-21 WO PCT/US2009/068913 patent/WO2010087917A1/en active Application Filing
- 2009-12-21 EP EP09775514A patent/EP2391872A1/en not_active Withdrawn
- 2009-12-21 AU AU2009338700A patent/AU2009338700B2/en not_active Ceased
- 2009-12-21 JP JP2011547938A patent/JP5722235B2/en not_active Expired - Fee Related
- 2009-12-21 CA CA2751096A patent/CA2751096C/en not_active Expired - Fee Related
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| DE1943021A1 (en) * | 1968-09-09 | 1970-03-19 | Siemens Ag | Device for measuring the flow according to the differential pressure method |
| US4317374A (en) * | 1980-05-15 | 1982-03-02 | The Bendix Corporation | Compensated vane airflow meter |
| US5663508A (en) * | 1995-08-07 | 1997-09-02 | Delco Electronics Corporation | Silicon flow sensor |
| CN2463795Y (en) * | 2000-11-26 | 2001-12-05 | 蒋跃 | Strain target bar |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100186517A1 (en) | 2010-07-29 |
| US7861596B2 (en) | 2011-01-04 |
| WO2010087917A1 (en) | 2010-08-05 |
| CN102365529A (en) | 2012-02-29 |
| CA2751096C (en) | 2016-02-09 |
| EP2391872A1 (en) | 2011-12-07 |
| JP5722235B2 (en) | 2015-05-20 |
| JP2012516441A (en) | 2012-07-19 |
| CA2751096A1 (en) | 2010-08-05 |
| AU2009338700A1 (en) | 2011-08-18 |
| WO2010087917A8 (en) | 2010-09-30 |
| AU2009338700B2 (en) | 2014-04-17 |
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